A policy and charge control (PCC) architecture and method for handling access point name-aggregate maximum bit rate (APN-AMBR) subscription data that is associated with a subscriber regardless of whether the subscriber's User Equipment (UE) is located in an AMBR-capable access area such as an E-UTRAN or in an AMBR non-capable access area such as a 3G SGSN. The PCC architecture includes: (a) a policy server such as a PCRF that installs the APN-AMBR subscription data during an IP session establishment for the subscriber in the IP level convergence point and (b) an IP level convergence point that enforces the APN-AMBR subscription data for a lifetime of an IP session associated with the IP session establishment.